Casing for pendent switches and the like.



c. 1. KLEIN. CASING FOR PENDENT SWITCHES AND THE LIKE- APPLICATION FILED DEC. 8, I la. 1,2804 15.

Patented Sept. 24, 1918.

CHARLES J'. KLEIN, MILWAUKEE, WISCONSIN, ASSIGNOR TO THE CUTLER-HAMMER MFG. (30., OF MILWAUKEE,

F CASING FOB PENDENT SWITCHES AND THE LIKE.

WISCONSIN, A CORPORATION OF WISCONSIN.

Specification of Letters Patent.

Patented se t. 24', 1918.

Continuation in part! application Serial No. 717,065, filed August 26, 1912. This application filed December State of lVisconsin, have invented new and useful Improvements in Casings for Pendent Switches and the'like, of which the following isa full, clear, concise, and exact description, reference bein had to the accompanying drawing, forming a part of this specification. v

This invention relates to casings for pendent switches, lamp sockets and similar devices. i

One of the objects of the invention to provide an improved casing especlally adapted for a switch mechanism having a reciprocable operating member.

A further object is to provide an improved casing wherein the shell member comprises a plurality of parts capable of assembly about a switch or similardevice.

Further objects will appear In order that my invention may be more clearly understood, I have illustrated two preferred embodin'ients thereof in the accom'panyingl drawing. It is to be understood, however, that the. forms shown are susceptible of modification without departing from the scope of the appended claims.

Figure 1 is a side view of a pendent switch casing of the feed-through type;

Fig. 2 is asimilar view of the parts of the casing shell when separated;-

Fig. 3 is a sectional view on'theline 3 -3 of Fig. 2;

Fig. 4 is a side viewof a modified form a of casing;

Fig. 5 is a'sectional view on the line 5-'-5 of Fig. 4; and,.

Fig. 6 is an enlarged perspective of a portion of the casing provided with one set of interlocking means.

' This application is a contlnuation of my a )plication filed August 26, 1912, Serial N o. "717,065, as to all the common sub ectmatter of the two, applications.

An insulating base 1 is arranged to carry one or more snap switch mechanisms having reciprocable operating members 'Ihe casing for the switch comprises a cylindrical hereinafter.

'ingmeans between the cap Serial No. 807,456.

. shell 3 and a pair of caps 4 detachably fitting over the endsof tie shell. In order that the shell' 3 may snugly inclose the base and switch, and for other purposes, the same vided on its longitudinal edges with depressed portions 7 whereby the two parts may be assembled with the portions 7 fitting within the other part of the shell.

The caps tare designed to telescope over the ends of the shell, and interlocking means are provided to releasably' lock the same together. When thus assembled thecaps also serve to hold the two parts of the shell against separation.

In order to additionally lock together the two parts of the shell 3 and to prevent their relative movement when the caps are removed, interlocking means are. provided therefor on the overlapping longitudinal;

edges.) comprises catches 8 and shoulders 9 of. the form described and claimed in my co'pending application, filed December 18, 1913, Serial No. 807,455. Briefly described, each catch comprises a substantially segnuintalv portion of one (part crimped inwardly to provide a hooke wall 10 and tapered side walls 11,.while the shoulder 9 in practice This interlocking means preferably comprises an arc-shaped opening in the other part of the shell. \Vhen the parts of the shell are united the catches and shoulders cooperate to eti'ectually lock the parts against longitudinaland ment in both directions.

the shell. The arched wall of the catch 8 provide a hinge-like lock, that is, the shell may. be com missed at either end sufficiently to release t e caps 4 without releasing or weakening the intermediate lock between the two partsof the shell.

and shell is thus The interlock transverse move- Moreover, this in-.

tel-locking means perfori'us an additional function when this applied to the sides ofq relea able imlqwndeutly of the interhwking iliscrtcd laterally therein.

can between the parts of the sheILlhough b lb coiipcl'alc to hold thelatter together.

In the casing of Figsl aml '5, the shell is longitmlinally split on only one side and is provided with an opening opposite the line of division and complementary recesses on the line of division to receive the operating member '2 of the switch. ln this'embodiment the shell is designed to beresiliently spread so that the switch may be pair of interlocking means is preferably provided above and below theswitch button 2. the operationof which 'in this embodiment remains similar to that already described.

The base 1 is provided on opposite sides ot each em] with extensions 1:! and the parts of the shell are provided with corresponding marginal slots,l$l for receiving the extensions 12 to support the base within the casing and thereby insuring against relative longitudinal movement of the base' when the parts of the casing are assembled thereabout. ln order to provide a more substantial support for the base the metal of the shell is preferably bent inward. as at 14, at one or iuore sides of the slots 13.

'hat l claim as new aml desire to secure by Letters Patent is:

l. The. combination with a push button switch, of a cylindrical resilient shell to inclose said switcln said shell having a push button opening and being split longitudinally to permit spreading thereof to receive said switch and l -eap to fit the end of said shell to secure the latter about said switch.

2. The combination with a push button switch. of a cylindrical inclosing'shell therefor of resilient material, said shell being 'upon assemblv of split; longitudinally into separate' sections "to be assembled about said switch, said secmaterial split longitudinally to hex-fittedabout said switch, said shell normally having its longitudinal. edges overlapped and having an anti-spread catch for such overlapped edgcs utilizing the resiliency of said shell for snap action of said catch and removable end caps for said shell.

The combination with apush button switch. of a cylindrical shell comprising separate senii-cylimlricalssections to assembled about said switch with one section overlapping opposite edges of the other, one of said sections having shoulders to interlock with shoulders on the other and being resilient to effect interlock of said shoulders said sections to thereby lock the same together and'end caps for said shell.

In witness whereof, I have hereun'to subscribed my nan'ie in the plesenee of two witnesses.

CHARLES J. KL]! l N. \Vitnesses L. A. \VATSQN, :F. H. Hons-um. 

